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Right Circular cone (or commonly known as Cone) has only one vertex.
There are other types of cones too, but you will study only right circular cones.
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The cone is the solid that has only one vertex .For example - The pyramids.
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Four, in order to form a tetrahedron; this is also the simplest possible 3-dimensional object constructed of regular polygons. eg a CONE
example- birthday cap [it is a cone]
i tll the ex cone
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